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Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
Black
Interior Colour
Tan
Transmission
Automatic
Drivetrain
4×4
Stock
6026-45978
Fuel Type
Diesel
Trim Details
4WD Crew Cab Standard Box Denali Ultimate
Description
2026 GMC Sierra 3500HD Crew Cab Denali Ultimate Duramax 4x4
The Pinnacle of Heavy-Duty Luxury
Introducing the 2026 GMC Sierra 3500HD Denali Ultimate—the absolute peak of GMC's heavy-duty truck lineup. Now available at our dealership, the Denali Ultimate represents the perfect fusion of professional-grade capability and first-class luxury. With its exclusive design elements, hand-selected materials, and the legendary Duramax diesel engine, this truck is engineered for those who refuse to compromise on power or prestige.
Duramax Power: Unmatched Heavy-Duty Performance
Under the hood beats the heart of a true workhorse: the Duramax 6.6L Turbo-Diesel V8 engine, delivering a commanding 470 horsepower and a massive 975 lb-ft of torque. This B20-diesel compatible powerhouse provides the grunt you need for the most demanding jobs, from hauling heavy equipment to towing large fifth-wheel campers across the province .
The Duramax pairs with a 10-speed automatic Allison transmission, delivering smooth, confident shifts whether you're pulling away from a stoplight or climbing a steep grade with a heavy load. The standard exhaust brake helps improve control when towing, reducing brake wear and providing peace of mind on downhill grades.
Serious Capability: Built for the Toughest Jobs
The Sierra 3500HD Denali Ultimate is engineered for those who demand maximum capability:
Maximum towing capacity: 20,000 lbs with conventional hitch; up to 36,000 lbs with gooseneck when properly equipped
Maximum payload: 5,121 lbs—among the best in its class
12,100 lbs Gross Vehicle Weight Rating (GVWR)
Auto-locking rear differential for enhanced traction in slippery conditions
Integrated trailer brake controller for confident, precise trailer control
Skid plates protect the oil pan, front axle, and transfer case
The 4x4 system features a two-speed electronic Autotrac transfer case with push-button control, giving you confidence in everything from muddy job sites to snow-covered highways . The Digital Variable Steering Assist automatically adjusts steering based on speed and road conditions, reducing driver effort and fatigue on long journeys .
Denali Ultimate Luxury: First-Class Interior
Step inside the Denali Ultimate cabin, and you'll discover an environment that rivals premium luxury vehicles . The Crew Cab configuration offers class-leading passenger space, with 44.5 inches of front legroom and 43.4 inches of rear legroom .
Premium amenities include:
Full-grain leather seating with 16-way power adjustment including lumbar and massage for both front seats
Heated and ventilated front seats for year-round comfort in any Canadian climate
Heated second-row outboard seats ensuring passenger comfort on long journeys
Heated, leather-wrapped steering wheel with power rake and telescoping adjustment
Dual-zone automatic climate control with individual settings
Driver memory settings recalling presets for power driver seat and outside mirrors
Power-retractable assist steps for easy cab access
Authentic open-pore wood accents and premium materials throughout
Technology: The Ultimate Command Centre
The Sierra 3500HD Denali Ultimate sets new standards for connectivity with its advanced technology suite:
13.4-inch diagonal Premium GMC Infotainment System with Google built-in, featuring natural voice assistance and navigation
12.3-inch diagonal reconfigurable digital Driver Information Centre displaying key driving data right in your line of sight
15-inch multicolour Head-Up Display projecting essential information onto the windshield
Bose Premium Series 12-speaker sound system with CenterPoint, Richbass woofer, and AudioPilot for immersive audio
Wireless Apple CarPlay and Android Auto—no cables required
Wireless charging pad for compatible devices
Built-in 5G Wi-Fi Hotspot capable keeping everyone connected
Rear Camera Mirror—inside rearview auto-dimming with full camera display
Multiple USB ports throughout the cabin
MultiPro Tailgate with Kicker Sound System
The revolutionary GMC MultiPro Tailgate remains the most innovative tailgate on the market, offering six functional load/access features—from a full-width step to a mobile workstation. This Denali Ultimate includes a built-in Kicker sound system in the tailgate, transforming your truck into the ultimate entertainment machine .
In-Vehicle Trailering App: Your Intelligent Towing Partner
For those who tow, the Sierra Denali Ultimate includes the sophisticated In-Vehicle Trailering App :
Pre-departure checklist to ensure everything is connected properly
Trailer maintenance reminders and security alerts
Real-time trailer mileage tracking
Electrical diagnostics and Trailer Tire Pressure Monitor System capability
Trailer Side Blind Zone Alert and Hitch Guidance with Hitch View
Bed View Camera and Trailer Camera Provisions for expanded visibility
Comprehensive Safety: GMC Pro Safety Plus
Your peace of mind is paramount. The Sierra Denali Ultimate comes equipped with GMC Pro Safety:
Enhanced Automatic Emergency Braking and Forward Collision Alert
Front Pedestrian Braking for added urban protection
Lane Keep Assist with Lane Departure Warning
Following Distance Indicator and IntelliBeam auto high beams
Safety Alert Seat that vibrates to warn the driver
Buckle to Drive encourages seat belt use
Additional safety features include:
HD Surround Vision with front camera washer providing an overhead view
Front and Rear Park Assist with ultrasonic sensors
Rear Cross Traffic Braking and Rear Pedestrian Alert
Rear Seat Reminder to help prevent forgetting children or pets
Hill Descent Control for steep, off-road descents
Utility Features for Canadian Living
The Sierra Denali Ultimate is loaded with thoughtful features that make work and life easier:
Spray-on bedliner with GMC logo for durable cargo protection
120-volt power outlet in the bed (400 watts shared with interior outlet)
LED cargo area lighting with convenient switch or key fob activation
Capless fuel fill for easy refueling
Heavy-duty battery with 730 cold-cranking amps for reliable winter starts
Engine block heater standard for those frigid Canadian mornings
Chrome recovery hooks front and rear
The Confidence of OnStar and Warranty Protection
Every new Sierra Denali Ultimate comes with OnStar Basics included for up to 8 years, providing mobile app commands, connectivity for select apps, navigation with real-time traffic, and Automatic Crash Response.
GMC's comprehensive warranty coverage includes:
36 Months / 60,000 km New Vehicle Limited Warranty
60 Months / 100,000 km Powertrain Warranty
60 Months / 100,000 km Roadside Assistance
72 Months / 160,000 km Corrosion Warranty
Experience the Denali Ultimate Difference
The 2026 GMC Sierra 3500HD Crew Cab Denali Ultimate SRW Duramax 4x4 is more than just a truck—it's a statement. It's for those who demand the absolute best: uncompromising capability, unmistakable luxury, and the confidence that comes from driving a vehicle engineered to exceed every expectation. With its legendary Duramax power, sophisticated technology, and thoughtful features, it's ready for whatever your work and life demand.
VSA 10374
Packages & Options
Standard Equipment
Technical Specifications
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AM/FM Stereo
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Auxiliary Audio Input
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Bluetooth Connection
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MP3 Player
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Navigation System
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Smart Device Integration
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Requires Subscription
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Satellite Radio
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Premium Sound System
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WiFi Hotspot
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Aluminum Wheels
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Tires - Front All-Terrain
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Tires - Rear All-Terrain
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Conventional Spare Tire
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Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
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Generic Sun/Moonroof
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Sun/Moonroof
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Bumper, front, body-colour lower
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Bumper, rear body-colour with bumper CornerSteps
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CornerStep, rear bumper
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Bed Step, Black integrated on forward portion of bed on driver and passenger side
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Power Retractable Running Boards
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Running Boards/Side Steps
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Mouldings, beltline, stainless steel
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Wheelhouse liners, rear (Not available with dual rear wheel models.)
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Bed Liner
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Cargo tie downs (12), fixed, rated at 500 lbs per corner
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Grille, Signature Denali Ultimate grille in Vader chrome with High Gloss Black surround
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Winter Grille Cover
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Daytime Running Lights
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LED Headlights
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Automatic Highbeams
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Fog Lamps
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Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
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Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
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LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
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Lamps, Smoked Amber roof marker, (LED) (Standard with dual rear wheels.)
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Heated Mirrors
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Integrated Turn Signal Mirrors
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Power Folding Mirrors
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Power Mirror(s)
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Mirror caps, chrome
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Intermittent Wipers
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Rain Sensing Wipers
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Variable Speed Intermittent Wipers
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Privacy Glass
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Rear Defrost
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Sliding Rear Window
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Door handles, chrome
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Integrated Tailgate Step
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Tailgate and bed rail protection caps, top
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Premium Sound System
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Bucket Seats
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Leather Seats
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Driver Adjustable Lumbar
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Power Driver Seat
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Seat-Massage
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Passenger Adjustable Lumbar
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Power Passenger Seat
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Pass-Through Rear Seat
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Rear Bench Seat
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Heated Front Seat(s)
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Cooled Front Seat(s)
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Heated Rear Seat(s)
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Mirror Memory
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Seat Memory
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Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
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Floor covering, colour-keyed carpeting
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Floor Mats
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Leather Steering Wheel
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Heated Steering Wheel
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Adjustable Steering Wheel
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Steering Wheel Audio Controls
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Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
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GMC Premium information Display- 13.4" diagonal Multicolour touch screen
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Heads-Up Display
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Exterior Temperature Display located in radio display
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Compass, located in instrument cluster
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Tire Pressure Monitor
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Window, power front, drivers express up/down
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Power Windows
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Power Door Locks
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Remote Engine Start
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Keyless Entry
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Keyless Start
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Adaptive Cruise Control
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Cruise Control
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Universal Garage Door Opener
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Security System
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Wireless Charging
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Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
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USB ports, (2) charge-only, rear
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Auxiliary Audio Input
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MP3 Player
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Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
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A/C
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Climate Control
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Multi-Zone A/C
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Air vents, rear
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Rear Defrost
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Auto-Dimming Rearview Mirror
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Back-Up Camera
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Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
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8 Cylinder Engine
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Diesel Fuel
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Turbocharged
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10-Speed A/T
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A/T
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Rear axle, 3.42 ratio
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Pickup bed
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GVWR, 12,100 lbs. (5488 kg) with single rear wheels (Included and only available with TK30743 model and (L5P) Duramax 6.6L Turbo-Diesel V8 engine. Requires single rear wheels.)
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Engine block heater
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Keyless Start
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Air filter, heavy-duty
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Air filtration monitoring
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Transfer case, two-speed active electronic Autotrac with push button control
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Locking/Limited Slip Differential
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Four Wheel Drive
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Cooling, external engine oil cooler
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Cooling, auxiliary external transmission oil cooler
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Battery, heavy-duty 730 cold-cranking amps/70 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L5P) Duramax 6.6L Turbo-Diesel V8 engine.)
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Alternator, 220 amps
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Trailer brake controller, integrated
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Tow Hooks
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Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
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Skid Plates protect the oil pan, front axle and transfer case
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Suspension, Off-Road includes twin-tube shocks (Not available with dual rear wheels.)
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Power Steering
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4-Wheel Disc Brakes
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ABS
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Brake lining wear indicator
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Capped Fuel Fill
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Back-Up Camera
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Heads-Up Display
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Automatic Highbeams
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Front Collision Mitigation
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Front Collision Warning
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Lane Departure Warning
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X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks (Not available with dual rear wheels.)
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Tow Hitch
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ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
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Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
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Front Collision Mitigation
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Front Collision Warning
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Stability Control
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Traction Control
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Hill Descent Control (Not available with dual rear wheels.)
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Daytime Running Lights
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Driver Air Bag
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Front Head Air Bag
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Front Side Air Bag
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Passenger Air Bag
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Passenger Air Bag Sensor
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Rear Head Air Bag
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Requires Subscription
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Telematics
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Rear Parking Aid
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Aerial View Display System
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Back-Up Camera
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Bed View Camera camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen, includes Two Trailer Camera Provisions
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Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
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Trailer Camera Provisions and trailer viewing software
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Cross-Traffic Alert
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Blind Spot Monitor
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Lane Departure Warning
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Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
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Safety Alert Seat
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Rear Seat Reminder
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Driver Restriction Features
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Seat Belt Adjustable Guide Loops, front row only
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Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.)
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Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety)
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Tire Pressure Monitor
No matches were found.
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Vehicle NameGMC Sierra 3500HD
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Body StyleCrew Cab Pickup
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Body CodeE63
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DrivetrainFour Wheel Drive
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Trans Order CodeMGM
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Trans Type10
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Trans Description Cont.Automatic
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First Gear Ratio (:1)4.54
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Second Gear Ratio (:1)2.87
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Third Gear Ratio (:1)2.06
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Fourth Gear Ratio (:1)1.72
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Fifth Gear Ratio (:1)1.48
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Sixth Gear Ratio (:1)1.26
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Seventh Gear Ratio (:1)1.00
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Eighth Gear Ratio (:1)0.85
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Ninth Gear Ratio (:1)0.69
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Tenth Gear Ratio (:1)0.63
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Reverse Ratio (:1)4.54
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Passenger Capacity5
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Front Head Room (in)39.88
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Front Leg Room (in)44.53
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Front Shoulder Room (in)66.02
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Front Hip Room (in)61.18
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Second Head Room (in)40.12
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Second Leg Room (in)43.4
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Second Shoulder Room (in)65.3
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Second Hip Room (in)60.24
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Gross Axle Wt Rating - Front (lbs)5600
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Gross Axle Wt Rating - Rear (lbs)7250
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Curb Weight - Front (lbs)4032
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Curb Weight - Rear (lbs)2928
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Gross Vehicle Weight Rating Cap (lbs)12100
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Gross Combined Wt Rating (lbs)30000
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Dead Weight Hitch - Max Trailer Wt. (lbs)5000
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Dead Weight Hitch - Max Tongue Wt. (lbs)500
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Wt Distributing Hitch - Max Trailer Wt. (lbs)20000
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Wt Distributing Hitch - Max Tongue Wt. (lbs)2000
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)21100
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)5275
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Maximum Trailering Capacity (lbs)20000
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Engine Order CodeL5P
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Engine TypeTurbocharged Diesel V8
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Displacement6.6L
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Fuel SystemDirect Injection
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SAE Net Horsepower @ RPM470 @ 2800
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SAE Net Torque @ RPM975 @ 1600
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Engine Oil CoolerYes
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Cold Cranking Amps @ 0° F (Primary)720
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Maximum Alternator Capacity (amps)170
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Frame TypeHydroformed
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Suspension Type - FrontShort/Long Arm w/Torsion Bars
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Suspension Type - Rear3-Stage Multi-Leaf
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Axle Type - FrontIndependent
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Axle Ratio (:1) - Front3.42
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Axle Ratio (:1) - Rear3.42
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Shock Absorber Diameter - Front (mm)51
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Shock Absorber Diameter - Rear (mm)51
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Stabilizer Bar Diameter - Front (in)1.38
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Front Tire Order CodeQF6
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Rear Tire Order CodeQF6
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Spare Tire Order CodeZYG
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Front Tire SizeLT275/70R18
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Rear Tire SizeLT275/70R18
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Spare Tire SizeLT275/70R18
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Front Wheel Size (in)20
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Rear Wheel Size (in)20
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Spare Wheel Size (in)18 x 8
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Front Wheel MaterialAluminum
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Rear Wheel MaterialAluminum
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Spare Wheel MaterialSteel
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Steering TypePwr Recirculating Ball
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Steering Ratio (:1), At LockN/A
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Turning Diameter - Curb to Curb (ft)52.7
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Turning Diameter - Wall to Wall (ft)N/A
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Brake TypePwr
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Brake ABS System4-Wheel
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Disc - FrontYes
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Disc - RearYes
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Front Brake Rotor Diam x Thickness (in)14 x 1.6
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Rear Brake Rotor Diam x Thickness (in)14.1 x 1.3
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Fuel Tank Capacity, Approx (L)136
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Wheelbase (in)158.94
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Length, Overall (in)250.75
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Width, Max w/o mirrors (in)81.85
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Height, Overall (in)81.2
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Cab to Axle (in)42.17
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Ground Clearance, Front (in)11.18
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Ground Clearance, Rear (in)11.18
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Cargo Box Length @ Floor (in)82.2
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Cargo Box Width @ Floor (in)71.4
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Cargo Box Width @ Wheelhousings (in)51.85
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Cargo Box (Area) Height (in)21
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Cargo Volume (ft³)69.5
No matches were found.
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